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Amazon.com: FiiO Q3 Amplifier Headphone Amp High Resolution DAC DSD512 for Smartphone/PC/Laptop/Home/Car Audio 2.5/3.5/4.4mm Output : Electronics
Amazon.com: Khadas DAC amp Tone 2 Pro | Desktop Digital Analog Converter -Headphone Amplifier with USB-C/USB-C(I2S) Inputs/Outputs: 3.5mm Unbalanced / 4.4mm Balanced/RCA - MQA DECODER (Black) : Electronics
Hiby FC5 MQA Portable USB DAC, 4.4mm Balanced Headphone Port AMP
Amazon.com: Topping DX5 MQA DAC Headphone Amp Full Balanced Audio Decoder ES9068AS*2 Chip NFCA USB/Optical/Coaxial Full MQA Decoding DA Converter Bluetooth LDAC XLR/RCA Output Headphone Amplifier (Black) : Electronics
Amazon.com: XDUOO XD-05 Plus Headphone Amplifier AK4493EQ 32bit/384kHZ DSD256 DAC Portable Headphone Amplifier Black : Electronics
Amazon.com: Geekria SJC01 Portable Headphone Amplifier/DAC/AMP with USB and Type-C Input, 3.5mm Audio Jack Output, Compatible with 384K/32Bit Hi-Res APPL Music Lossless Audio, PC, Laptop, Android Phones : Electronics
Amazon.com: SoundMAGIC A30 Portable Headphone Amplifier HiFi Stereo Earphone Amp High Resolution DAC Adaptive impedence to 600ohm Type C Connector for Andriod Device and PC : Electronics
Amazon.com: eSynic Headphone Amplifier Portable Amp 3.5mm Gain Switch & 192KHz DAC Digital to Analog Audio Converter Digital Optical Coaxial to Analog L/R RCA 3.5mm Jack : Electronics
Amazon.com: SHANLING UA2 Portable Headphone Amplifier,Headphone Tiny Amps,USB DAC Balanced High Resolution Support 32bit/768kHz and DSD512 Headphone Outputs 3.5mm/2.5mm for Phone/Player/Nintendo Switch/Laptop/PC : Electronics